DEWALT DWMT74139OSP 12 Point 3/8" Drive Deep Socket 1/2" SAE Direct Torque Technology helps prevent rounding of fasteners Knurled Control Ring for added grip when handling the socket Chamfered open end for easier engagement of fasteners Hard Stamped markings to prevent loss of identification over time Full Polish Chrome Vanadium finish helps prevent chipping and flaking under toughest environments